Lost foam casting drying device

Abstract

The utility model discloses an evanescent mode casting drying device, which relates to the technical field of drying equipment, and comprises a drying box, a drying main machine and a circulating fan blade, a horizontal partition plate is arranged in the drying box, and three conveying bodies are sequentially arranged in the drying box from top to bottom. The three conveying bodies can automatically convey the lost foam into the drying box and can also convey the dried lost foam out of the drying box, compared with an existing manual conveying mode, the lost foam drying device is more labor-saving and more convenient to operate, the vertical partition plate is arranged, air inlet holes are formed in the surface of the vertical partition plate, and therefore the lost foam drying device is more convenient to use. And hot air conveyed into the hot air cavity by the drying main machine can enter the drying cavity from three directions of the drying cavity through the air inlet holes in the vertical partition plate, so that the evanescent mode can be dried from multiple directions, the evanescent mode is dried more uniformly, and the drying effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a lost foam casting drying device. Background Art

[0002] Lost foam casting (also known as full-mold casting) is a new casting method in which wax or foam models with similar size and shape to the casting are bonded together into a model cluster, coated with refractory paint and dried, buried in dry quartz sand for vibration molding, and poured under negative pressure to vaporize the model, so that the liquid metal occupies the position of the model and forms a casting after solidification and cooling.

[0003] At present, most of the lost foam casting drying devices commonly used in the market directly place the lost foam on the lost foam placement rack in the drying room for drying. During the drying process, personnel are required to manually push and pull the lost foam placement rack to place the lost foam into the drying room or take it out of the drying room. The operation process is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a lost foam casting drying device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lost foam casting drying device comprises a drying box, a drying main unit and a circulation fan blade, a horizontal partition plate is installed in the drying box, a return air chamber is formed above the horizontal partition plate, a vertical partition plate is installed below the horizontal partition plate, the vertical partition plate divides the drying box below the horizontal partition plate into a hot air chamber and a drying chamber, a plurality of air inlet holes are provided on the surface of the vertical partition plate, a return air port is provided on the horizontal partition plate, the return air chamber and the drying chamber are connected through the return air port, three conveying bodies are sequentially installed in the drying chamber from top to bottom, two box doors adapted to the drying chamber are installed on one side of the drying box, one side of the box door is hinged to the drying box, a circulation fan blade is arranged in the return air chamber opposite to the return air port, the circulation fan blade is directly connected to the output shaft of the motor installed on the top of the drying box, a dehumidification port is provided on the top of the drying box, a dehumidification fan is installed in the dehumidification port, a return air duct is installed on the top of the drying box, the other end of the return air duct is connected to the drying main unit arranged outside the drying box, and the air inlet of the drying main unit is arranged in the hot air chamber.

[0007] As a further solution of the utility model: the vertical partition plate is composed of three mutually perpendicular plates, and gaps are left between the three plate surfaces of the vertical partition plate and the drying box.

[0008] As a further solution of the utility model: the conveying body includes a conveyor belt, two conveyor rollers and a conveyor motor, the two conveyor rollers are connected by a conveyor belt transmission, the conveyor motor is installed on the outer wall of the drying box and is connected to the conveyor rollers by transmission, and the conveyor belt is a Teflon conveyor belt.

[0009] As a further solution of the utility model: the length of the lowest conveying body in the drying box is greater than the lengths of the other two conveying bodies.

[0010] As a further solution of the utility model: a temperature and humidity sensor is installed on the inner wall of the box door, and the temperature and humidity sensor is electrically connected to the temperature and humidity controller installed on the outer wall of the drying box, and the temperature and humidity controller is electrically connected to the motor, the drying host and the dehumidification fan.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model arranges three conveying bodies in the drying box from top to bottom in sequence. The three conveying bodies can automatically convey the lost foam into the drying box, and can also convey the dried lost foam out of the drying box. Compared with the existing conveying method by manpower, the utility model is more labor-saving and more convenient to operate.

[0013] 2. The utility model sets a vertical partition plate and opens air inlet holes on the surface of the vertical partition plate. The hot air delivered to the hot air chamber by the drying host can enter the drying chamber from three directions through the air inlet holes on the vertical partition plate, and then the lost foam can be dried from multiple directions, so that the lost foam is dried more evenly and the drying effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a cross-sectional view of the overall structure of a lost foam casting drying device.

[0015] Figure 2 The figure is an overall appearance diagram of a lost foam casting drying device.

[0016] Figure 3 A lost foam casting drying device Figure 2 Side view of.

[0017] 1. Drying box; 2. Drying chamber; 3. Hot air chamber; 4. Return air chamber; 5. Horizontal partition; 6. Conveyor; 7. Vertical partition; 8. Drying host; 9. Return air duct; 10. Return air outlet; 11. Motor; 12. Circulating fan blades; 13. Dehumidification outlet; 14. Dehumidification fan; 15. Box door; 16. Temperature and humidity sensor; 17. Temperature and humidity controller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 In the embodiment of the utility model, a lost foam casting drying device includes a drying box 1, a drying main unit 8 and a circulating fan blade 12. A horizontal partition plate 5 is installed in the drying box 1. The return air chamber 4 is above the horizontal partition plate 5. A vertical partition plate 7 is installed below the horizontal partition plate 5. The vertical partition plate 7 divides the drying box 1 below the horizontal partition plate 5 into a hot air chamber 3 and a drying chamber 2. A plurality of air inlet holes are provided on the surface of the vertical partition plate 7. A return air port 10 is provided on the horizontal partition plate 5. The return air chamber 4 and the drying chamber 2 are connected through the return air port 10. The drying chamber 2 is connected from top to bottom according to the return air port 10. Three conveying bodies 6 are installed at the same time. Two doors 15 adapted to the drying chamber 2 are installed on one side of the drying box 1. One side of the door 15 is hinged to the drying box 1. A circulating fan blade 12 is arranged in the return air chamber 4 opposite to the return air outlet 10. The circulating fan blade 12 is directly connected to the output shaft of the motor 11 installed on the top of the drying box 1. A dehumidification outlet 13 is opened on the top of the drying box 1. A dehumidification fan 14 is installed in the dehumidification outlet 13. A return air duct 9 is installed on the top of the drying box 1. The other end of the return air duct 9 is connected to a drying host 8 arranged outside the drying box 1. The air inlet of the drying host 8 is arranged in the hot air chamber 3.

[0020] The vertical partition plate 7 is composed of three mutually perpendicular plates, and gaps are left between the three plate surfaces of the vertical partition plate 7 and the drying box 1. This design allows hot air to enter the drying chamber 2 from different directions.

[0021] The conveying body 6 includes a conveyor belt, two conveyor rollers and a conveyor motor. The two conveyor rollers are connected by the conveyor belt transmission. The conveyor motor is installed on the outer wall of the drying box 1 and is connected to the conveyor rollers. The conveyor belt adopts Teflon conveyor belt, which is resistant to high temperature and has good air permeability.

[0022] The length of the bottom conveying body 6 in the drying box 1 is greater than the lengths of the other two conveying bodies 6 . This design can facilitate the airflow in the drying chamber 2 .

[0023] A temperature and humidity sensor 16 is installed on the inner wall of the box door 15, and the temperature and humidity sensor 16 is electrically connected to a temperature and humidity controller 17 installed on the outer wall of the drying box 1. The temperature and humidity controller 17 is electrically connected to the motor 11, the drying host 8 and the dehumidification fan 14. The model of the temperature and humidity sensor 16 is DHT11, and the model of the temperature and humidity controller 17 is WHD48-11 / C.

[0024] The conveying body 6 includes a conveyor belt, two conveyor rollers and a conveyor motor. The conveyor rollers are connected through the conveyor belt transmission. The conveyor motor is installed on the outer wall of the drying box 1 and is connected to the conveyor rollers. The conveyor belt adopts a Teflon conveyor belt, and the conveyor motor adopts a forward and reverse motor. It is controlled by an external forward and reverse switch, which is convenient for personnel to switch the conveyor belt forward and reverse, and convenient for feeding and sending out the lost foam.

[0025] The working principle of the utility model is:

[0026] When in use, first place the lost foam to be dried on the conveying body 6, then start the conveying body 6 to convey the lost foam into the drying box 1, when the lost foam is completely placed, close the box door 15, start the drying main unit 8, and blow hot air into the drying box 1. The hot air enters the drying chamber 2 from the air inlet of the vertical partition plate 7 in the hot air chamber 3 to dry the lost foam, and then the motor 11 drives the circulating fan blades 12 to draw the hot air in the drying chamber 2 from the return air port 10 into the return air chamber 4, and finally circulates into the drying main unit 8 from the return air duct 9, and the moisture in the return air chamber 4 is extracted from the drying box 1 through the dehumidification fan 14. After the drying is completed, open the box door 15, start the conveying body 6 to convey the lost foam out in the reverse direction.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lost foam casting drying device, comprising a drying box (1), a drying main unit (8) and a circulating fan (12), characterized in that: A horizontal partition plate (5) is installed in the drying box (1), and a return air chamber (4) is located above the horizontal partition plate (5). A vertical partition plate (7) is installed below the horizontal partition plate (5). The vertical partition plate (7) divides the drying box (1) below the horizontal partition plate (5) into a hot air chamber (3) and a drying chamber (2). A plurality of air inlet holes are provided on the surface of the vertical partition plate (7). A return air port (10) is provided on the horizontal partition plate (5). The return air chamber (4) and the drying chamber (2) are connected via the return air port (10). Three conveying bodies (6) are installed in sequence from top to bottom in the drying chamber (2). One side of the drying box (1) is provided with a Two doors (15) are adapted to the drying chamber (2), one side of the door (15) is hinged to the drying chamber (1), a circulating fan blade (12) is arranged in the return air chamber (4) opposite to the return air port (10), the circulating fan blade (12) is directly connected to the output shaft of the motor (11) installed on the top of the drying chamber (1), a dehumidification port (13) is opened on the top of the drying chamber (1), a dehumidification fan (14) is installed in the dehumidification port (13), a return air duct (9) is installed on the top of the drying chamber (1), the other end of the return air duct (9) is connected to a drying main unit (8) arranged outside the drying chamber (1), and the air inlet of the drying main unit (8) is arranged in the hot air chamber (3).

2. The lost foam casting drying device according to claim 1, characterized in that: The vertical partition plate (7) is composed of three mutually perpendicular plates, and gaps are left between the three plate surfaces of the vertical partition plate (7) and the drying box (1).

3. The lost foam casting drying device according to claim 1, characterized in that: The conveying body (6) comprises a conveying belt, two conveying rollers and a conveying motor. The two conveying rollers are connected by a conveying belt transmission. The conveying motor is installed on the outer wall of the drying box (1) and is connected by a conveying motor. The conveying belt is a Teflon conveying belt.

4. The lost foam casting drying device according to claim 1, characterized in that: The length of the lowest conveying body (6) in the drying box (1) is greater than the lengths of the other two conveying bodies (6).

5. The lost foam casting drying device according to claim 1, characterized in that: A temperature and humidity sensor (16) is installed on the inner wall of the box door (15), and the temperature and humidity sensor (16) is electrically connected to a temperature and humidity controller (17) installed on the outer wall of the drying box (1), and the temperature and humidity controller (17) is electrically connected to the motor (11), the drying main unit (8) and the dehumidification fan (14).

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